Base | Representation |
---|---|
bin | 1100111111011… |
… | …1101101110010 |
3 | 10210112110222220 |
4 | 3033313231302 |
5 | 102422221033 |
6 | 5223541510 |
7 | 1231113600 |
oct | 317675562 |
9 | 123473886 |
10 | 54492018 |
11 | 28839729 |
12 | 162ba896 |
13 | b39bbc9 |
14 | 7346870 |
15 | 4bb5bb3 |
hex | 33f7b72 |
54492018 has 48 divisors (see below), whose sum is σ = 128564640. Its totient is φ = 15349824.
The previous prime is 54492007. The next prime is 54492071. The reversal of 54492018 is 81029445.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 54492018.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20193 + ... + 22731.
It is an arithmetic number, because the mean of its divisors is an integer number (2678430).
Almost surely, 254492018 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 54492018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64282320).
54492018 is an abundant number, since it is smaller than the sum of its proper divisors (74072622).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
54492018 is a wasteful number, since it uses less digits than its factorization.
54492018 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2631 (or 2624 counting only the distinct ones).
The product of its (nonzero) digits is 11520, while the sum is 33.
The square root of 54492018 is about 7381.8709010657. The cubic root of 54492018 is about 379.1208160205.
The spelling of 54492018 in words is "fifty-four million, four hundred ninety-two thousand, eighteen".
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